#VantageOnFirstpost: More than 1,000 Hajj pilgrims have died in Mecca as temperatures exceed 50 degrees Celsius. Experts claim, by 2040, Hajj is going to be fatal. But this is not an isolated scenario. By 2050, India's temperatures will cross survivability limits. We are already seeing signs of this as North India braves an unrelenting heatwave. Climate change is breaking records across nations like US, Mexico, Greece and Paris. Will it become too hot to survive? Can our infrastructure keep up?